Evaporative cooler



FIG. 1 is a top perspective view of an evaporative cooler showing my newdesign therefor;

FIG. 2 is a left side elevational view thereof, the right side being amirror image of the left side shown;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevational view thereof; and

FIG. 6 is a rear elevational view thereof.

The ornamental design for an evaporative cooler, as shown and described.